Invention Grant
US09400913B2 Optical fingerprint recognition apparatus 有权
光学指纹识别装置

Optical fingerprint recognition apparatus
Abstract:
In accordance with an embodiment, the prism is made slimly to correct the distortion of the fingerprint image such as trapezoidal distortion or the like. Therefore, it is possible to manufacture the optical fingerprint recognition apparatus of a compact size. Further, the imaging lens is arranged to have a de-centering amount and/or a tilt angle with respect to the optical axis, which leads to an effect to implement resolution approaching the diffraction limit.
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